189442684 has 6 divisors (see below), whose sum is σ = 331524704. Its totient is φ = 94721340.

The previous prime is 189442661. The next prime is 189442699. The reversal of 189442684 is 486244981.

It is a super-2 number, since 2×189442684² = 71777061042247712, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23680332 + ... + 23680339.

Almost surely, 2^189442684 is an apocalyptic number.

It is an amenable number.

189442684 is a deficient number, since it is larger than the sum of its proper divisors (142082020).

189442684 is a wasteful number, since it uses less digits than its factorization.

189442684 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47360675 (or 47360673 counting only the distinct ones).

The product of its digits is 442368, while the sum is 46.

The square root of 189442684 is about 13763.8179296298. The cubic root of 189442684 is about 574.3270605093.

The spelling of 189442684 in words is "one hundred eighty-nine million, four hundred forty-two thousand, six hundred eighty-four".